PLYMOUTH – Police arrested two people of heroin charges Friday after undercover surveillance teams witnessed an alleged drug deal in West Plymouth.

Acting on a tip, officers were watching the parking lot at 265 South Meadow Road when a local woman allegedly purchased an unspecified quantity of heroin from a Carver man.

Tiffany Walters, 34, of 34 White Horse Road, and Kevin Davenport, 27, of 138 South Meadow Road, Carver, were charged with possession of a Class A substance with intent to distribute, simple possession of a Class A substance and conspiracy to violate controlled substance laws.

Davenport was also charged with distribution of a Class A substance and driving after suspension.

Capt. John Rogers said narcotics detectives were watching the parking lot with help from the department’s street crimes unit when they witnessed the transaction shortly after 7:30 p.m.